Gaussian filter

The Gaussian smoothing filter is used for noise reduction and removing details. The filter is simialr to the arithmetic mean filter but it uses a different kernel that represents the shape of a 2D Gaussian distribution.

• In the search engine of the Processing Toolbox, type Smoothing and select Smoothing(gaussian) under Image Filtering of the Orfeo Toolbox.
• Under the Parameters tab, select a single band or a multiband file as input layer.
• Select gaussian from the drop-down list as Smoothing Type.
• Adjust the Radius of a circular element in pixel size.